Miosis | |
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Other names | Myosis, pinpoint pupil |
Miosis from bright light pointed directly at the eye. Pupil measured 2.3 mm in diameter | |
Pronunciation | |
Specialty | Ophthalmology |
Symptoms | Constricted pupils |
Miosis, or myosis (from Ancient Greek μύειν (múein) 'to close the eyes'), is excessive constriction of the pupil.[1][2][3][4] The opposite condition, mydriasis, is the dilation of the pupil. Anisocoria is the condition of one pupil being more dilated than the other.